/**
 * Copyright 1996-2013 Founder International Co.,Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * @author kenshin
 */
package com.founder.fix.fixflow.expand.cmd;


import com.founder.fix.fixflow.core.exception.FixFlowException;
import com.founder.fix.fixflow.core.impl.bpmn.behavior.TaskCommandInst;
import com.founder.fix.fixflow.core.impl.cmd.AbstractExpandTaskCmd;
import com.founder.fix.fixflow.core.impl.interceptor.CommandContext;
import com.founder.fix.fixflow.core.impl.task.TaskInstanceEntity;
import com.founder.fix.fixflow.expand.command.GeneralTaskCommand;

public class CompleteGeneralTaskCmd extends AbstractExpandTaskCmd<GeneralTaskCommand, Void>{
	
	
	
	
	
	public CompleteGeneralTaskCmd(GeneralTaskCommand abstractCustomExpandTaskCommand) {
		super(abstractCustomExpandTaskCommand);
		// TODO Auto-generated constructor stub
	}

	public Void execute(CommandContext commandContext) {

		//初始化任务命令执行所需要的常用对象
		loadProcessParameter(commandContext);
		
		//将外部变量注册到流程实例运行环境中
		addVariable();
		
		//执行处理命令中的开发人员设置的表达式
		runCommandExpression();
		
		//获取正在操作的任务实例对象
		TaskInstanceEntity taskInstance=getTaskInstanceEntity();
		
		//获取正在操作的任务命令对象实例
		TaskCommandInst taskCommand=getTaskCommandInst();
		

		if(taskInstance!=null){
			
			//结束任务，并推动token运行
			taskInstance.end(taskCommand, this.taskComment);

		}
		else{
			throw new FixFlowException("没有找到id为: "+taskId+" 的任务");
		}
		
		//持久化流程实例
		saveProcessInstance(commandContext);

		
		return null;
		
	}

}
